The descriptive complexity of Helson sets

zbMath0843.43004MaRDI QIDQ1913497

Étienne Matheron

Publication date: 14 May 1996

Published in: Illinois Journal of Mathematics (Search for Journal in Brave)

zbMATH Keywords

Fourier seriescircle groupcompact metric spaceBorel classHelson set

Mathematics Subject Classification ID

Descriptive set theory (03E15) Special sets (thin sets, Kronecker sets, Helson sets, Ditkin sets, Sidon sets, etc.) (43A46) Classification of real functions; Baire classification of sets and functions (26A21)

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